National Science Foundation | 2014 Oct 27
Unprecedented nova images illuminate astronomers' models for its ejecta
The first images of a nova during its early fireball stage--when it ejects material, and gases expand and cool--show that this activity is more complicated than predicted.
That is the conclusion, published in the current issue of Nature, from a research collaboration led by Georgia State University Astronomer Gail Schaefer that includes 37 researchers (many who are National Science Foundation (NSF)-funded) from 17 institutions. The researchers observed the expanding thermonuclear fireball from a nova that erupted last year in the constellation Delphinus.
"This is the first time astronomers have been able to witness an expanding fireball with such great detail, rather than as a tiny point of light way out in the galaxy," Schaefer said. "It was amazing to see the material expanding outward each day after the explosion." ...
First time-lapse images of exploding fireball from a 'nova' star
University of Sidney | 2014 Oct 27
Astronomers Watch Exploding Stellar Fireball with Unprecedented Clarity
Mount Wilson Observatory | CHARA | 2014 Oct 27
Astronomers Image The Exploding Fireball Stage Of A Nova
Georgia State University | CHARA | 2014 Oct 27
The expanding fireball of Nova Delphini 2013 - G. H. Schaefer et al
- Nature (online 26 Oct 2014) DOI: 10.1038/nature13834
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